Waec Model Questions Vol1 2017 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2017 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2017 Chemistry Objective / Multiple Choice Medium Difficulty
Question 23 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • objective

A 150 g mixture of octane (C₈H₁₈) and decane (C₁₀H₂₂) is cracked catalytically. Each molecule yields one molecule of ethene (C₂H₄) plus a saturated hydrocarbon containing the remaining carbon atoms. The mass of ethene obtained is 30 g. Determine the mass percentage of octane in the original mixture.

Answer Options

Correct Answer A. 5.8 %
B. 7.3 %
C. 4.2 %
D. 9.1 %
Correct Answer
A
Correct Option:
5.8 %

About This Question

This is Waec Model Questions Vol1 2017 Chemistry Question 23. It is a objective / multiple choice question from the 2017 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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